Question - (1) In gated myocardial perfusion studies, which images do you use for perfusion analysis: nongated or summed images, ED images, ES images, or all the images with cine mode display? (2) For quantitative analysis of left ventricular function, do you use gated myocardial perfusion single photon emission computed tomography (SPECT) or gated blood pool imaging? United States. Charleston, South Carolina